Improvement in machinery for molding pottery



UNITED STATES PATENT OFFICE.

JOHN TRESOH, OF NEW YORK, N. Y.

IMPROVEMENTv IN MACHINERY lFOR MOLDING POTTERY.

Specification forming part of Letters Patent No. 38,430, dated May 5, 1863.

To @ZZ whom it may concern.-

Be it known that I, JOHN Tensen, of the city, county, and State of New York, have invented a new and useful Improvement in Machines for Molding Pottery; andl do hereby declare that the following is a full, clear, and exact description of the'same, reference being had to the accompanying drawings, forming a part of this specication, in which- Figure 1 represents a longitudinal vvertical section of my invention. Fig. 2 is a transverse vertical section of the same. Fig. 3 is a face view of one of the molds detached. Fig. 4L is a rear elevation of the tool used for removing the readymade articles from the mold. Fig. 5 is a side elevation of the same.

Similar letters in all the figures indicate corresponding parts.

The object of this invention is to mold a large quantity of iiower-pots or other similar articles by machinery in a short time, and with little labor.

The invention consists in the arrangement of adouble-headed reciprocating carriage, each head being provided with a series of revolving cores, in combination with two stationary asks, in such a manner that by moving the carriage in either direction a number of articles can be molded simultaneously, and during the time the molded articles are removed from one flask the operation of molding proceeds in the other ask.

The invention consists also in the arrangement of a hinged cap with a movable brace, in combination with the flask divided up into sections, which are connected by hinges in such a manner that by turning up the cap and supporting it by the brace the ask is rendered rigid and firm, and by turning the lask down the several sections of the flask can be separated for the purpose of emptying and elevating or illing the molds.

The invention consists, finally, in the employment, for the purpose of removing the molded articles out of the molds, of a remover consisting of two hinged spring-arms provided with a series of nipples corresponding in number and position to the molds in each flask in such a manner that when the articles in the molds are ready to be carried to the dryin g-kiln by means of the remover the several articles in each lask can be taken out simultaneously and deposited in any place without damage to their shape and with little loss of time.

To enable those skilled in the art to make and use my invention, I will proceed to describe it with reference to the drawings.

A represents a frame,made of wood or other suitable material, which supports the shears or ways B similar to the shears of a turninglathe.

O is a carriage, to which a reciprocating motion is imparted by means of a rack, c, and pinion b, or in any other desirable manner. This carriage is provided with two heads, c, one on either end,which form the bearings for the shafts d, to the ends of which the cores e are secured. The shafts d are geared together by wheels f, and they receive a rotary motion by a belt running on the pulley g, the length of which is such that the belt can accommodate itself to the reciprocating motion of the carriage.

D D are the flasks, which are rmly secured in the ends of the shears by means of screws h, or by any other suitable means. Each liask is composed of several sections,which are connected by hinges t' and caps j, which are hinged to the rear or outside of said iasks, render the eapsva're supported by braces 7c, which are secured to the ends of the shears or to brackets by means of pivots m, so that they can be turned down out ofthe way when it is desired to open the lasks.

E is the remover, which consists of two arms, n, united by a pivot, o, similar to shears, and provided with handles p, so that they can be opened and closed. A spring, q, is applied to the arms in such a manner that the same has a tendency to close the arms. Said arms are provided with a series of nipples, r, corresponding in number and position to the number vand position of the molds in each ask, and in shape to the interior of the articles to be molded.

The operation is as follows: The molds are filled with clay, and by moving the carriage toward one end of the shears the revolving cores enter the molds in one of the flasks and the clay in each mold is brought in the desired form. The carriage is now moved toward the opposite end of the shears, and while the articles in the ask on that end are forming the first flask is emptied and recharged, so that the operation of molding can be continued sections rigid whenever it is desired. These,

1. The arrangement of the double-headed reciprocating carriage C, each head being provided With a series of revolving cores, c, in combination with two stationary iiasks, D D,

one opposite to either head of the carriage, all constructed and operating as and for the 'purpose described.

2. The arrangement of a hinged cap, j, and brace 7c, in combination with a sectional flask, l), constructed and operating in the manner and for the purpose substantially as described.

3. The employment of the remover D, constructed substantially as specified, for the purpose shown and described.

JOHN TRESCH.

Witnesses:

J. W. OooMBs, M. M. LIVINGSTON. 

